Bubble, 3D printed model rocket

thingiverse

Detailed instructions on how to build a reusable 3D printed model rocket that can carry a camera are available at Instructables: https://www.instructables.com/id/Bubble-3D-Printed-Model-Rocket I set out to design my own rocket because I couldn't find one that met my requirements. I wanted a rocket that could take aerial videos, but none of the existing designs fit the bill. So, I decided to create something from scratch and share it with others. It took several iterations to get the design just right. I had to balance stability with reliable parachute deployment and sometimes sacrificed performance for aesthetics. After all, who doesn't want a rocket that looks good? Bubble has some features that set it apart from other 3D printed model rockets: its motor is thermally insulated, which prevents the PLA body from melting at low temperatures; its fins have an airfoil shape to reduce drag and improve stability; and its large payload bay makes it easy to attach a camera or altimeter. The design also takes into account the limitations of 3D printing. The geometry is optimized for easy printing without supports, making it accessible to hobbyists. Bubble was designed to fly with an Estes D12-3 motor, which can be purchased in packs of two for under $11. It's launched using a 3/16'' rod and reaches an altitude of approximately 230 meters when flown from a 5ft long rod.